If you do not receive a mail ballot, you can request a replacement ballot by mail or in person at the Registrar of Voters, an Early Vote site or a polling place using a Replacement Mail Ballot Application [pdf]. Alternatively, you may authorize another person to pick-up your mail ballot at the Registrar of Voters or an Early Vote site with an Application to Provide Vote-By-Mail Ballot to an Authorized Representative [pdf]
Note: If you request a replacement ballot, the Registrar of Voters will suspend the mail ballot you did not receive so someone else cannot use it to vote.